No, it was me but gave up due to the expencive pricetag. Was just not worth it. Talked with a lot of different companies and everyone could help me but when the price landed on at least 1200sek (115Gbp) per diff I gave up. Plus the cost of the diffs and bavelgears.
Run 1/8 electric now a days instead. Faster and more durable and a lot of fun
geardiffs ha ha.